$ git clone -n https://src.fedoraproject.org/rpms/rpm-ostree.git /var/lib/mock/f40-build-2321984-58622/root/chroot_tmpdir/scmroot/rpm-ostree
Cloning into '/var/lib/mock/f40-build-2321984-58622/root/chroot_tmpdir/scmroot/rpm-ostree'...
$ git fetch origin 318f89022b93c7d9d65bbf52685a8f851ac28c38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpm-ostree
 * [new ref]         318f89022b93c7d9d65bbf52685a8f851ac28c38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 318f890 Release 2024.2